Home / 10,535.09-15,803.35-3,138.98

Finding the Fourth Proportional to 10,535.09, 15,803.35 and 3,138.98

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Solution

The fourth proportional to 10,535.09, 15,803.35 and 3,138.98 is: 4,708.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,535.09 : 15,803.35 = 3,138.98 : x
  2. Step 2: Convert to fraction form
    10,535.09/15,803.35 = 3,138.98/x
  3. Step 3: Cross multiply
    10,535.09x = 15,803.35 × 3,138.98
  4. Step 4: Simplify right side
    10,535.09x = 49,606,312.72
  5. Step 5: Solve for x
    x = 49,606,312.72/10,535.09
  6. Step 6: Final answer
    x = 4,708.68

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.